C++ IGraphBuilder::Release方法代码示例

void main()
{
	int option;
    IGraphBuilder *pGraph = NULL;  //Creem l'apuntador al graf de filtres
	IMediaControl *pControl = NULL; //creem l'apuntador a un controlador per ayurar i iniciar el graf 
	IMediaEvent *pEvent = NULL; // apunta a l'objecte necessari per obtenir events del filter graph manager
	//IBaseFilter *pGrabberF = NULL;
    //ISampleGrabber *pGrabber = NULL;

	HRESULT hr = CoInitialize(NULL); // Inicialitzem la llibreria COM
	if ( FAILED(hr) ){
		printf("ERROR - Could not initialize COM library");
        return;
	}
	// Create the filter graph manager and query for interfaces.
    hr = CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER, IID_IGraphBuilder, (void **)&pGraph);
    if (FAILED(hr))
    {
        printf("ERROR - Could not create the Filter Graph Manager.");
        return;
    }
	
    hr = pGraph->QueryInterface(IID_IMediaControl, (void **)&pControl);
    hr = pGraph->QueryInterface(IID_IMediaEvent, (void **)&pEvent);

    // Build the graph. IMPORTANT: Change this string to a file on your system.
	cout<<"introduce 1:chicken 2:futbol 3: video futbol audio chicken: \n";
	cin>>option;
	switch(option)
	{
		case 1: hr = pGraph->RenderFile(L"C:\\Users\\Victor\\Downloads\\chicken.wmv", NULL);
			
			break;
		case 2: hr = pGraph->RenderFile(L"C:\\Users\\Victor\\Downloads\\futbol.mpg", NULL);
			break;
		case 3:  // Create the Sample Grabber filter.
  			break;
	}

    if (SUCCEEDED(hr))
    {
        // Run the graph.
        hr = pControl->Run();
        if (SUCCEEDED(hr))
        {
            // Wait for completion.
            long evCode;
            pEvent->WaitForCompletion(INFINITE, &evCode);

            // Note: Do not use INFINITE in a real application, because it
            // can block indefinitely.
        }
    }
    pControl->Release();
    pEvent->Release();
    pGraph->Release();
    CoUninitialize();

}

void play_movie( HWND hwnd )
{
    IGraphBuilder *pGraph;
    IMediaControl *pMediaControl;
    IMediaEvent   *pEvent;
    IBasicVideo   *pBasic;
    IVideoWindow    *pVidWin = NULL;
    RECT grc;
    long width, height;

    CoInitialize(NULL);
    
    // Create the filter graph manager and query for interfaces.
    CoCreateInstance( 
	CLSID_FilterGraph, 
	NULL, 
	CLSCTX_INPROC_SERVER, 
	IID_IGraphBuilder, 
	(void **)&pGraph);
    
    pGraph->QueryInterface(IID_IVideoWindow, (void **)&pVidWin);

    pGraph->QueryInterface(IID_IMediaControl, (void **)&pMediaControl);
    pGraph->QueryInterface(IID_IMediaEvent, (void **)&pEvent);
    pGraph->QueryInterface(IID_IBasicVideo, (void**)&pBasic );

    // Build the graph. IMPORTANT: Change string to a file on your system.
    pGraph->RenderFile(L"e:\\alpha\\running.avi", NULL);

    pBasic->GetVideoSize( &width, &height );  
    printf( "video frames are %d x %d\n", width, height );

    pVidWin->put_Owner((OAHWND)hwnd);
    pVidWin->put_WindowStyle(WS_CHILD | WS_CLIPSIBLINGS);

    GetClientRect( hwnd, &grc );
    pVidWin->SetWindowPosition(10, 10, width, height);
    printf( "window is %d x %d\n", grc.right, grc.bottom );

    // Run the graph.
    pMediaControl->Run();

    // Wait for completion. 
    long evCode;
    pEvent->WaitForCompletion(INFINITE, &evCode);

    pVidWin->put_Visible(OAFALSE);
    pVidWin->put_Owner(NULL);
    
    // Clean up.
    pBasic->Release();
    pVidWin->Release();
    pMediaControl->Release();
    pEvent->Release();
    pGraph->Release();
    CoUninitialize();
}

void playNormalVideo()
{
	IGraphBuilder *pGraphBuilder;
	IMediaControl *pMediaControl;
	IMediaEvent *pMediaEvent;
	long eventCode;

	CoInitialize(NULL);

	CoCreateInstance(CLSID_FilterGraph,
		NULL,
		CLSCTX_INPROC,
		IID_IGraphBuilder,
		(LPVOID *)&pGraphBuilder);

	pGraphBuilder->QueryInterface(IID_IMediaControl,
		(LPVOID *)&pMediaControl);

	pGraphBuilder->QueryInterface(IID_IMediaEvent,
		(LPVOID *)&pMediaEvent);

	pMediaControl->RenderFile(L"Rscreen_shortFinger.avi");

	pMediaControl->Run();

	FILTER_STATE fs;
	HRESULT hr = pMediaControl->GetState(100, (OAFilterState*)&fs);

	// The first argument is timeout value.
	// If you change the "-1" part into "2",
	// WaitForCompletion will timeout after 2 seconds.
	pMediaEvent->WaitForCompletion(-1, &eventCode);
	switch (eventCode) {
	 case 0:
		 printf("timeout\n");
		 break;
	 case EC_COMPLETE:
		 printf("complete\n");
		 break;
	 case EC_ERRORABORT:
		 printf("errorabort\n");
		 break;
	 case EC_USERABORT:
		 printf("userabort\n");
		 break;
	}

	hr = pMediaControl->GetState(100, (OAFilterState*)&fs);
	pMediaControl->Run();
	hr = pMediaControl->GetState(100, (OAFilterState*)&fs);
	pMediaEvent->WaitForCompletion(-1, &eventCode);

	pMediaControl->Release();
	pGraphBuilder->Release();
	CoUninitialize();
}

void Video::PlayMovie(string path)
{
	IGraphBuilder *pGraph = NULL;
    IMediaControl *pControl = NULL;
    IMediaEvent   *pEvent = NULL;
	IVideoWindow  *pVideo = NULL;
	
    // Initialize the COM library.
    CoInitialize(NULL);

    // Create the filter graph manager and query for interfaces.
    CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER, IID_IGraphBuilder, (void **)&pGraph);

	// Build the graph
	int len;
	int slength = (int)path.length() + 1;
	len = MultiByteToWideChar(CP_ACP, 0, path.c_str(), slength, 0, 0);
	 wchar_t* buf = new wchar_t[len];
	MultiByteToWideChar(CP_ACP, 0, path.c_str(), slength, buf, len);
	 std::wstring r(buf);
	delete[] buf;

	pGraph->RenderFile(LPCWSTR(r.c_str()), NULL);

	// set the owner window
	pGraph->QueryInterface(IID_IVideoWindow, (void **) &pVideo);	
	pVideo->put_Owner((OAHWND)window);
	pVideo->put_WindowStyle( WS_CHILD );
	pVideo->put_Left(0);
	pVideo->put_Top(0);
	

    pGraph->QueryInterface(IID_IMediaControl, (void **)&pControl);
    pGraph->QueryInterface(IID_IMediaEvent, (void **)&pEvent);

	pControl->Run();
	long evCode;
	pEvent->WaitForCompletion(-1, &evCode);
	
	// release controls
    pControl->Release();
    pEvent->Release();
    pGraph->Release();
	pVideo->Release();
    CoUninitialize();
}

video::video(std::wstring path): texture(1,1,false,GL_LINEAR,GL_REPEAT), rendered(false), isPlaying(false) {
	printf("Opening video \"%ls\"\n", path.c_str());
	IGraphBuilder * graph;
	IBaseFilter * base;
	__int64 clipLength;

	CoInitialize(0);
	CoCreateInstance(CLSID_FilterGraph, 0, CLSCTX_INPROC, IID_IGraphBuilder, (void**)&graph);
	
	HRESULT hr = S_OK;

	graph->QueryInterface(IID_IMediaControl, (void**)&mediaControl);
	graph->QueryInterface(IID_IMediaSeeking, (void**)&mediaSeeking);
	
	grabber = new textureGrabber(0, &hr);
	grabber->AddRef();
	grabber->QueryInterface(IID_IBaseFilter, (void**)&base);
	graph->AddFilter(base, L"peisikVideoSystem OpenGL texture renderer");

	hr = graph->RenderFile(path.c_str(), 0);

	grabber->setTexture(&texture);
	graph->Release();
	base->Release();

	if(SUCCEEDED(hr) && grabber->width)
	{
		printf("Video succesfully rendered\n");
		mediaSeeking->SetTimeFormat(&TIME_FORMAT_MEDIA_TIME);
		mediaSeeking->GetDuration(&clipLength);
		length = (long double)(clipLength)/(long double)10000000.0;

		__int64 position = 0;
		mediaSeeking->SetPositions(&position, AM_SEEKING_AbsolutePositioning, &position, AM_SEEKING_NoPositioning);

		rendered = true;
	}
	else
		printf("Couldn't find a working video graph\n");
}

void CHogVideo::Cleanup()
{
    this->UnHog();

    if (m_pEvent)
    {
        IMediaEvent *pEvent = (IMediaEvent*)m_pEvent;
        pEvent->Release();
        m_pEvent = NULL;
    }

    if (m_pVideoWindow)
    {
        IVideoWindow *pVideoWindow = (IVideoWindow*)m_pVideoWindow;
        pVideoWindow->Release();
        m_pVideoWindow = NULL;
    }

    if (m_pMediaControl)
    {
        IMediaControl *pMediaControl = (IMediaControl*)m_pMediaControl;
        pMediaControl->Release();
        m_pMediaControl = NULL;
    }

    if (m_pGraph)
    {
        IGraphBuilder *pGraph = (IGraphBuilder*)m_pGraph;
        pGraph->Release();
        m_pGraph = NULL;
    }

    if (m_bCOMInitialized)
    {
        CoUninitialize();
        m_bCOMInitialized = false;
    }
}

int main(int argc, char* argv[])
{
    ICaptureGraphBuilder2   *pCaptureGraphBuilder = NULL;
    IGraphBuilder           *pGraphBuilder = NULL;
    IBaseFilter             *pSource = NULL;
    IBaseFilter             *pMux = NULL;
    IBaseFilter             *pVideoCompressor = NULL;
    IBaseFilter             *pAudioCompressor = NULL;

    IAMStreamConfig         *pAMStreamConfig = NULL;
    IAMVideoCompression     *pAMVideoCompression = NULL;

    IMediaControl           *pControl = NULL;
    IMediaSeeking           *pSeek = NULL;
    IMediaEvent             *pEvent = NULL;

    HRESULT hr;

    DWORD pdwRegister=0;
    CoInitialize(NULL);

    // Create the capture graph builder.
    CoCreateInstance(CLSID_CaptureGraphBuilder2, NULL, CLSCTX_INPROC,
                     IID_ICaptureGraphBuilder2, (void **)&pCaptureGraphBuilder);

    // Make the rendering section of the graph.
    pCaptureGraphBuilder->SetOutputFileName(
        &MEDIASUBTYPE_Avi,  // File type.
        L"C:\\STDIUE1.avi",  // File name.
        &pMux,              // pointer to the multiplexer.
        NULL);              // pointer to the file writer.

    // Load the source file.
    pCaptureGraphBuilder->GetFiltergraph(&pGraphBuilder);
    pGraphBuilder->AddSourceFilter(L"C:\\Program Files\\Microsoft Money\\Media\\STDIUE1.avi", L"Source Filter", &pSource);

    // Add the compressor filter.
    CoCreateInstance(CLSID_AVICo, NULL, CLSCTX_INPROC,
                     IID_IBaseFilter, (void **)&pVideoCompressor);
    pGraphBuilder->AddFilter(pVideoCompressor, L"Video Compressor");

    // Render the video stream, through the compressor.
    pCaptureGraphBuilder->RenderStream(
        NULL,       // Output pin category
        NULL,       // Media type
        pSource,       // Source filter
        pVideoCompressor,     // Compressor filter
        pMux);      // Sink filter (the AVI Mux)

    /* CoCreateInstance(CLSID_GSM, NULL, CLSCTX_INPROC,
             IID_IBaseFilter, (void **)&pAudioCompressor);
     pGraphBuilder->AddFilter(pAudioCompressor, L"Audio Compressor");*/

    // Render the audio stream.
    pCaptureGraphBuilder->RenderStream(
        NULL,
        NULL,
        pSource,
        pAudioCompressor,
        pMux);

    // Compress at 100k/second data rate.
    AM_MEDIA_TYPE *pmt;
    pCaptureGraphBuilder->FindInterface(NULL, NULL, pVideoCompressor, IID_IAMStreamConfig, (void **)&pAMStreamConfig);

    pAMStreamConfig->GetFormat(&pmt);

    if (pmt->formattype == FORMAT_VideoInfo)
    {

        ((VIDEOINFOHEADER *)(pmt->pbFormat))->dwBitRate = 100000;

        pAMStreamConfig->SetFormat(pmt);
    }


    // Request key frames every four frames.
    pAMStreamConfig->QueryInterface(IID_IAMVideoCompression, (void **)&pAMVideoCompression);
    pAMVideoCompression->put_KeyFrameRate(4);
    pAMVideoCompression->Release();
    pAMStreamConfig->Release();

    // Run the graph.

    pGraphBuilder->QueryInterface(IID_IMediaControl, (void **)&pControl);
    pGraphBuilder->QueryInterface(IID_IMediaEvent, (void **)&pEvent);

    hr = pMux->QueryInterface(IID_IMediaSeeking, (void**)&pSeek);


    pControl->Run();
    printf("Recompressing... \n");

    long evCode;
    if (SUCCEEDED(hr))
    {
        REFERENCE_TIME rtTotal, rtNow = 0;
        pSeek->GetDuration(&rtTotal);
        while ((pEvent->WaitForCompletion(1000, &evCode)) == E_ABORT)
        {
//.........这里部分代码省略.........

//.........这里部分代码省略.........
				splashWithMarkers = false;
				break;
			}
		}
		int splashHeight = SplashBmp->getHeight();
		for (i = 0; splashWithMarkers && (i < splashHeight); ++i)
			if(SplashBmp->getRow(i)[0] & 0xFF000000)
			{
				if (y < 0)
				{
					y = i-1; // 1 pixel for marker line
					splashWithMarkers = true;
				} else
				{
					y = -1;
					splashWithMarkers = false;
					break;
				}
			}

			TCHAR verString[256] = {0};
			TCHAR* mirandaVerString = mir_a2t(szVersion);
			mir_sntprintf(verString, SIZEOF(verString), _T("%s%s"), szPrefix, mirandaVerString);
			mir_free(mirandaVerString);
			LOGFONT lf = {0};
			lf.lfHeight = 14;
			_tcscpy_s(lf.lfFaceName, _T("Verdana"));
			SelectObject(SplashBmp->getDC(), CreateFontIndirect(&lf));
			if (!splashWithMarkers)
			{
				SIZE v_sz = {0,0};
				GetTextExtentPoint32(SplashBmp->getDC(), verString, (int)_tcslen(verString), &v_sz);
				x = SplashBmp->getWidth()/2-(v_sz.cx/2);
				y = SplashBmp->getHeight()-(SplashBmp->getHeight()*(100-90)/100);
			}

			SetTextColor(SplashBmp->getDC(), (0xFFFFFFFFUL-SplashBmp->getRow(y)[x])&0x00FFFFFFUL);
			//SplashBmp->DrawText(verString,SplashBmp->getWidth()/2-(v_sz.cx/2),SplashBmp->getHeight()-30);	 
			SetBkMode(SplashBmp->getDC(), TRANSPARENT);
			SplashBmp->DrawText(verString, x, y);
			//free (ptr_verString);
	}

	SetWindowLongPtr(hwndSplash, GWL_EXSTYLE, GetWindowLongPtr(hwndSplash, GWL_EXSTYLE) | WS_EX_LAYERED);
	UpdateLayeredWindow(hwndSplash, NULL, &ptDst, &sz, SplashBmp->getDC(), &ptSrc, 0xffffffff, &blend, LWA_ALPHA);

	ShowWindow(hwndSplash, SW_SHOWNORMAL);

	if (options.fadein)
	{
		// Fade in
		int i;
		for (i = 0; i < 255; i += options.fisteps)
		{
			blend.SourceConstantAlpha = i;
			UpdateLayeredWindow(hwndSplash, NULL, &ptDst, &sz, SplashBmp->getDC(), &ptSrc, 0xffffffff, &blend, LWA_ALPHA);
			Sleep(1);
		}
	}
	blend.SourceConstantAlpha = 255;
	UpdateLayeredWindow(hwndSplash, NULL, &ptDst, &sz, SplashBmp->getDC(), &ptSrc, 0xffffffff, &blend, LWA_ALPHA);

	if (DWORD(arg) > 0)
	{
		if (SetTimer(hwndSplash, 6, DWORD(arg), 0))
		{
			#ifdef _DEBUG
				logMessage(_T("Timer TimeToShow"), _T("set"));
			#endif
		}
	}
	else
		if (bmodulesloaded)
		{
			if (SetTimer(hwndSplash, 8, 2000, 0))
			{
				#ifdef _DEBUG
					logMessage(_T("Timer Modules loaded"), _T("set"));
				#endif
			}
		}

	// The Message Pump
	MSG msg;
	while (GetMessage(&msg, NULL, 0, 0) == TRUE) //NULL means every window in the thread; == TRUE means a safe pump.
	{
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}

	if (options.playsnd)
	{
		pControl->Release();
		pGraph->Release();
		CoUninitialize();
	}

	ExitThread(0);
	return 1;
}

std::vector<CameraConfig> videoInputCamera::getCameraConfigs(int dev_id) {

	std::vector<CameraConfig> cfg_list;

	int count = getDeviceCount();
	if (count==0) return cfg_list;

	comInit();

	HRESULT hr;
	ICaptureGraphBuilder2 *lpCaptureGraphBuilder;
	IGraphBuilder *lpGraphBuilder;
	IBaseFilter *lpInputFilter;
	IAMStreamConfig *lpStreamConfig;

	char 	nDeviceName[255];
	WCHAR 	wDeviceName[255];

	for (int cam_id=0;cam_id<count;cam_id++) {
		if ((dev_id>=0) && (dev_id!=cam_id)) continue;
		hr = CoCreateInstance(CLSID_CaptureGraphBuilder2, NULL, CLSCTX_INPROC_SERVER, IID_ICaptureGraphBuilder2, (void **)&lpCaptureGraphBuilder);
		if (FAILED(hr))	// FAILED is a macro that tests the return value
		{
			printf("ERROR - Could not create the Filter Graph Manager\n");
			comUnInit();
			return cfg_list;
		}

		// Create the Filter Graph Manager.
		hr = CoCreateInstance(CLSID_FilterGraph, 0, CLSCTX_INPROC_SERVER,IID_IGraphBuilder, (void**)&lpGraphBuilder);
		if (FAILED(hr))
		{
			printf("ERROR - Could not add the graph builder!\n");
			lpCaptureGraphBuilder->Release();
			comUnInit();
			return cfg_list;
		}

		hr = lpCaptureGraphBuilder->SetFiltergraph(lpGraphBuilder);
		if (FAILED(hr))
		{
			printf("ERROR - Could not set filtergraph\n");
			lpGraphBuilder->Release();
			lpCaptureGraphBuilder->Release();
			comUnInit();
			return cfg_list;
		}

		memset(wDeviceName, 0, sizeof(WCHAR) * 255);
		memset(nDeviceName, 0, sizeof(char) * 255);
		hr = getDevice(&lpInputFilter, cam_id, wDeviceName, nDeviceName);

		if (SUCCEEDED(hr)){
			hr = lpGraphBuilder->AddFilter(lpInputFilter, wDeviceName);
		}else{
			printf("ERROR - Could not find specified video device\n");
			lpGraphBuilder->Release();
			lpCaptureGraphBuilder->Release();
			comUnInit();
			return cfg_list;
		}

		hr = lpCaptureGraphBuilder->FindInterface(&PIN_CATEGORY_CAPTURE, &MEDIATYPE_Video, lpInputFilter, IID_IAMStreamConfig, (void **)&lpStreamConfig);
		if(FAILED(hr)){
			printf("ERROR: Couldn't config the stream!\n");
			lpInputFilter->Release();
			lpGraphBuilder->Release();
			lpCaptureGraphBuilder->Release();
			comUnInit();
			return cfg_list;
		}

		CameraConfig cam_cfg;
		CameraTool::initCameraConfig(&cam_cfg);

		cam_cfg.driver = DRIVER_DEFAULT;
		cam_cfg.device = cam_id;
		sprintf(cam_cfg.name, "%s", nDeviceName);

		int iCount = 0;
		int iSize = 0;
		hr = lpStreamConfig->GetNumberOfCapabilities(&iCount, &iSize);
		std::vector<CameraConfig> fmt_list;

		if (iSize == sizeof(VIDEO_STREAM_CONFIG_CAPS))
		{
			GUID lastFormat = MEDIASUBTYPE_None;
			for (int iFormat = 0; iFormat < iCount; iFormat+=2)
			{
				VIDEO_STREAM_CONFIG_CAPS scc;
				AM_MEDIA_TYPE *pmtConfig;
				hr =  lpStreamConfig->GetStreamCaps(iFormat, &pmtConfig, (BYTE*)&scc);
				if (SUCCEEDED(hr)){

					if ( pmtConfig->subtype != lastFormat) {

						if (fmt_list.size()>0) {
							std::sort(fmt_list.begin(), fmt_list.end());
							cfg_list.insert( cfg_list.end(), fmt_list.begin(), fmt_list.end() );
							fmt_list.clear();
//.........这里部分代码省略.........

int _tmain(int argc, _TCHAR* argv[])
{

	int y;
	cin>>y;
	//
	IGraphBuilder* locGraphBuilder = NULL;
	IMediaControl* locMediaControl = NULL;
	IBaseFilter* locDemuxer = NULL;
	ICustomSource* locCustomSourceSetter = NULL;
	HRESULT locHR = S_FALSE;;
	CoInitialize(NULL);
	locHR = CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER, IID_IGraphBuilder, (void **)&locGraphBuilder);

	locHR = CoCreateInstance(CLSID_OggDemuxPacketSourceFilter, NULL, CLSCTX_INPROC_SERVER, IID_IBaseFilter, (void**)&locDemuxer);

	locGraphBuilder->AddFilter(locDemuxer, L"Custom Ogg Source");
	locDemuxer->QueryInterface(IID_ICustomSource, (void**)&locCustomSourceSetter);


	CustomSourceClass* locCustomFileSourceInterface = new CustomSourceClass;
	locCustomFileSourceInterface->open("D:\\testfile.ogg");
	
	locCustomSourceSetter->setCustomSourceAndLoad(locCustomFileSourceInterface);

	//Do not release, it's not really a COM interface
	//locCustomSourceSetter->Release();

	IEnumPins* locPinEnum = NULL;

	locDemuxer->EnumPins(&locPinEnum);

	

	IPin* locPin = NULL;
	ULONG locHowMany = 0;
	while (locPinEnum->Next(1, &locPin, &locHowMany) == S_OK) {
		locHR = locGraphBuilder->Render(locPin);
		locPin->Release();
		locPin = NULL;
	}






	//locHR = locGraphBuilder->RenderFile(L"g:\\a.ogg", NULL);

	locHR = locGraphBuilder->QueryInterface(IID_IMediaControl, (void**)&locMediaControl);


	locHR = locMediaControl->Run();

	IMediaEvent* locMediaEvent = NULL;
	locHR = locGraphBuilder->QueryInterface(IID_IMediaEvent, (void**)&locMediaEvent);
	
	HANDLE  hEvent; 
	long    evCode, param1, param2;
	BOOLEAN bDone = FALSE;
	HRESULT hr = S_OK;
	hr = locMediaEvent->GetEventHandle((OAEVENT*)&hEvent);
	if (FAILED(hr))
	{
	    /* Insert failure-handling code here. */
	}
	while(!bDone) 
	{
	    if (WAIT_OBJECT_0 == WaitForSingleObject(hEvent, 100))
	    { 
			while (hr = locMediaEvent->GetEvent(&evCode, &param1, &param2, 0), SUCCEEDED(hr)) 
			{
	            //printf("Event code: %#04x\n Params: %d, %d\n", evCode, param1, param2);
				cout<<"Event : "<<evCode<<" Params : "<<param1<<", "<<param2<<endl;
				locMediaEvent->FreeEventParams(evCode, param1, param2);
				bDone = (EC_COMPLETE == evCode);
			}
		}
	} 

	cout<<"Finished..."<<endl;
	int x;
	cin>>x;
	locMediaControl->Release();
	locGraphBuilder->Release();
	CoUninitialize();

	return 0;
}

int	main()
{
	// for playing
	IGraphBuilder *pGraphBuilder;
	ICaptureGraphBuilder2 *pCaptureGraphBuilder2;
	IMediaControl *pMediaControl;
	IBaseFilter *pDeviceFilter = NULL;

	// to select a video input device
	ICreateDevEnum *pCreateDevEnum = NULL;
	IEnumMoniker *pEnumMoniker = NULL;
	IMoniker *pMoniker = NULL;
	ULONG nFetched = 0;

	// initialize COM
	CoInitialize(NULL);

	//
	// selecting a device
	//

	// Create CreateDevEnum to list device
	CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER, 
		IID_ICreateDevEnum, (PVOID *)&pCreateDevEnum);

	// Create EnumMoniker to list VideoInputDevice 
	pCreateDevEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory,
		&pEnumMoniker, 0);
	if (pEnumMoniker == NULL) {
		// this will be shown if there is no capture device
		printf("no device\n");
		return 0;
	}

	// reset EnumMoniker
	pEnumMoniker->Reset();

	// get each Moniker
	while (pEnumMoniker->Next(1, &pMoniker, &nFetched) == S_OK)
	{
		IPropertyBag *pPropertyBag;
		TCHAR devname[256];

		// bind to IPropertyBag
		pMoniker->BindToStorage(0, 0, IID_IPropertyBag,
			(void **)&pPropertyBag);

		VARIANT var;

		// get FriendlyName
		var.vt = VT_BSTR;
		pPropertyBag->Read(L"FriendlyName", &var, 0);
		WideCharToMultiByte(CP_ACP, 0,
			var.bstrVal, -1, devname, sizeof(devname), 0, 0);
		VariantClear(&var);

		printf("%s\r\n", devname);
		printf("  select this device ? [y] or [n]\r\n");
		int ch = getchar();

		// you can start playing by 'y' + return key
		// if you press the other key, it will not be played.
		if (ch == 'y')
		{
			// Bind Monkier to Filter
			pMoniker->BindToObject(0, 0, IID_IBaseFilter,
				(void**)&pDeviceFilter );
		}
		else
		{
			getchar();
		}

		// release
		pMoniker->Release();
		pPropertyBag->Release();

		if (pDeviceFilter != NULL)
		{
			// go out of loop if getchar() returns 'y'
			break;
		}
	}

	if (pDeviceFilter != NULL) {
		//
		// PLAY
		//

		// create FilterGraph
		CoCreateInstance(CLSID_FilterGraph,
			NULL,
			CLSCTX_INPROC,
			IID_IGraphBuilder,
			(LPVOID *)&pGraphBuilder);

		// create CaptureGraphBuilder2
		CoCreateInstance(CLSID_CaptureGraphBuilder2, NULL, CLSCTX_INPROC, 
			IID_ICaptureGraphBuilder2, 
			(LPVOID *)&pCaptureGraphBuilder2);
//.........这里部分代码省略.........

// A very simple program to capture a webcam & audio to a file using DirectShow
//
int main(int argc, char* argv[])
{
    ICaptureGraphBuilder2 *pCaptureGraph = NULL;	// Capture graph builder object
	IGraphBuilder *pGraph = NULL;	// Graph builder object
    IMediaControl *pControl = NULL;	// Media control object
	IFileSinkFilter *pSink = NULL;	// File sink object
	IBaseFilter *pAudioInputFilter = NULL; // Audio Capture filter
	IBaseFilter *pVideoInputFilter = NULL; // Video Capture filter
	IBaseFilter *pASFWriter = NULL;	// WM ASF File config interface

    // Initialize the COM library.
    HRESULT hr = CoInitialize(NULL);
    if (FAILED(hr))
    {
	     // We’ll send our error messages to the console.
        printf("ERROR - Could not initialize COM library");
        return hr;
    }

    // Create the filter graph manager and query for interfaces.
    hr = CoCreateInstance(CLSID_CaptureGraphBuilder2, NULL, CLSCTX_INPROC_SERVER,
                          IID_ICaptureGraphBuilder2, (void **)&pCaptureGraph);
    if (FAILED(hr))	// FAILED is a macro that tests the return value
    {
        printf("ERROR - Could not create the Filter Graph Manager.");
        return hr;
    }

	// Use a method of the capture graph builder
	// To create an output path for the stream 
	hr = pCaptureGraph->SetOutputFileName(&MEDIASUBTYPE_Asf, 
		L"C:\\MyWebcam.ASF", &pASFWriter, &pSink);

	// Now configure the ASF Writer
	// Present the property pages for this filter
	hr = ShowFilterPropertyPages(pASFWriter);

	// Now get the filter graph manager
	// That's part of the capture graph builder
	hr = pCaptureGraph->GetFiltergraph(&pGraph);

	 // Using QueryInterface on the graph builder, 
    // Get the Media Control object.
    hr = pGraph->QueryInterface(IID_IMediaControl, (void **)&pControl);
    if (FAILED(hr))
    {
        printf("ERROR - Could not create the Media Control object.");
        pGraph->Release();	// Clean up after ourselves.
		CoUninitialize();  // And uninitalize COM
        return hr;
    }

	// Get an AudioCapture filter.
	// But there are several to choose from
	// So we need to enumerate them, and pick one.
	// Then add the audio capture filter to the filter graph. 
	hr = GetAudioInputFilter(&pAudioInputFilter, L"Logitech");
	if (SUCCEEDED(hr)) {
		hr = pGraph->AddFilter(pAudioInputFilter, L"Webcam Audio Capture");
	}

	// Now create the video input filter from the webcam
	hr = GetVideoInputFilter(&pVideoInputFilter, L"Logitech");
	if (SUCCEEDED(hr)) {
		hr = pGraph->AddFilter(pVideoInputFilter, L"Webcam Video Capture");
	}

	// Add a video renderer
	//IBaseFilter *pVideoRenderer = NULL;
	//hr = AddFilterByCLSID(pGraph, CLSID_VideoRenderer, L"Video Renderer", &pVideoRenderer);

	// Use another method of the capture graph builder
	// To provide a render path for video preview
	IBaseFilter *pIntermediate = NULL;
	hr = pCaptureGraph->RenderStream(&PIN_CATEGORY_PREVIEW, &MEDIATYPE_Video,
		pVideoInputFilter, NULL, NULL);

	// Now add the video capture to the output file
	hr = pCaptureGraph->RenderStream(&PIN_CATEGORY_CAPTURE, &MEDIATYPE_Video,
		pVideoInputFilter, NULL, pASFWriter);
	
	// And do the same for the audio
	hr = pCaptureGraph->RenderStream(&PIN_CATEGORY_CAPTURE, &MEDIATYPE_Audio,
		pAudioInputFilter, NULL, pASFWriter);

    if (SUCCEEDED(hr))
    {
        // Run the graph.
        hr = pControl->Run();
        if (SUCCEEDED(hr))
        {
			// Wait patiently for completion of the recording
			wprintf(L"Started recording...press Enter to stop recording.\n");

            // Wait for completion.
			char ch;
			ch = getchar();		// We wait for keyboard input
        }
//.........这里部分代码省略.........

//.........这里部分代码省略.........
            if (regErr != ERROR_SUCCESS || dwType != REG_BINARY) {
                return res == AV_CODEC_ID_NONE ? VFW_E_TYPE_NOT_ACCEPTED : S_OK;
            }

            if (buf[2] >= 0x0b) { // Third byte is the major version number
                doPostProcessing = true;
            }
        }


        if (doPostProcessing) {
            DPRINTF(_l("TffdshowVideoInputPin::CheckMediaType: input format disabled or not supported. Trying to maintain in the graph..."));
            IFilterMapper2 *pMapper = NULL;
            IEnumMoniker *pEnum = NULL;

            HRESULT hr = CoCreateInstance(CLSID_FilterMapper2,
                                          NULL, CLSCTX_INPROC, IID_IFilterMapper2,
                                          (void **) &pMapper);

            if (FAILED(hr)) {
                // Error handling omitted for clarity.
            }

            GUID arrayInTypes[2];
            arrayInTypes[0] = mt->majortype;//MEDIATYPE_Video;
            arrayInTypes[1] = mt->subtype;//MEDIASUBTYPE_dvsd;

            hr = pMapper->EnumMatchingFilters(
                     &pEnum,
                     0,                  // Reserved.
                     TRUE,               // Use exact match?
                     MERIT_DO_NOT_USE + 1, // Minimum merit.
                     TRUE,               // At least one input pin?
                     1,                  // Number of major type/subtype pairs for input.
                     arrayInTypes,       // Array of major type/subtype pairs for input.
                     NULL,               // Input medium.
                     NULL,               // Input pin category.
                     FALSE,              // Must be a renderer?
                     TRUE,               // At least one output pin?
                     0,                  // Number of major type/subtype pairs for output.
                     NULL,               // Array of major type/subtype pairs for output.
                     NULL,               // Output medium.
                     NULL);              // Output pin category.

            // Enumerate the monikers.
            IMoniker *pMoniker;
            ULONG cFetched;

            while (pEnum->Next(1, &pMoniker, &cFetched) == S_OK) {
                IPropertyBag *pPropBag = NULL;
                hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag,
                                             (void **)&pPropBag);

                if (SUCCEEDED(hr)) {
                    // To retrieve the friendly name of the filter, do the following:
                    VARIANT varName;
                    VariantInit(&varName);
                    hr = pPropBag->Read(L"FriendlyName", &varName, 0);
                    if (SUCCEEDED(hr)) {
                        if (varName.pbstrVal == NULL || _strnicmp(FFDSHOW_NAME_L, varName.bstrVal, 22) != 0) {
                            // Display the name in your UI somehow.
                            DPRINTF(_l("TffdshowVideoInputPin::CheckMediaType: compatible filter found (%s)"), varName.pbstrVal);
                            hr = pMoniker->BindToObject(NULL, NULL, IID_IBaseFilter, (void**)&pCompatibleFilter);
                        }
                    }

                    // Now add the filter to the graph. Remember to release pFilter later.
                    IFilterGraph *pGraph = NULL;
                    fv->deci->getGraph(&pGraph);

                    IGraphBuilder *pGraphBuilder = NULL;
                    hr = pGraph->QueryInterface(IID_IGraphBuilder, (void **)&pGraphBuilder);
                    if (hr == S_OK) {
                        pGraphBuilder->AddFilter(pCompatibleFilter, varName.bstrVal);
                    } else {
                        pCompatibleFilter->Release();
                        pCompatibleFilter = NULL;
                    }

                    // Clean up.
                    VariantClear(&varName);
                    pGraphBuilder->Release();
                    pPropBag->Release();
                }
                pMoniker->Release();
                if (pCompatibleFilter != NULL) {
                    break;
                }
            }

            // Clean up.
            pMapper->Release();
            pEnum->Release();
        }
    }
    if (pCompatibleFilter != NULL) {
        return S_OK;
    }
    return res == AV_CODEC_ID_NONE ? VFW_E_TYPE_NOT_ACCEPTED : S_OK;
}

// Open multimedia stream.
BOOL CDShow::Open(ZString& pFileName, IDirectDraw7 *pDD)
{
	// Multimedia stream pointer
	IAMMultiMediaStream *pAMStream;
	IGraphBuilder *pGb; // 7/10 #110
	IEnumFilters *pEfs;
	IBasicAudio *pBa;

    
	//7/29/09 we can now do stuff while the video plays
	CoInitializeEx(NULL,COINIT_MULTITHREADED); 
	

    // Create Multimedia stream object
	if (FAILED(CoCreateInstance(CLSID_AMMultiMediaStream, NULL, CLSCTX_INPROC_SERVER,
				 IID_IAMMultiMediaStream, (void **)&pAMStream)))
	{		
		// Return FALSE to let caller know we failed.	
		return FALSE; 
	}
    
	// Initialize Multimedia stream object
	if (FAILED(pAMStream->Initialize(STREAMTYPE_READ, 0, NULL)))
	{	
		// There are alot of possiblities to fail.....		
		return FALSE; 
	}

    // Add primary video stream.
	if (FAILED((pAMStream->AddMediaStream(pDD, &MSPID_PrimaryVideo, 0, NULL))))
	{		
		return FALSE; 
	}

    // Add default sound render to primary video stream,
	// so sound will be played back automatically.
	if (FAILED(pAMStream->AddMediaStream(NULL, &MSPID_PrimaryAudio, AMMSF_ADDDEFAULTRENDERER, NULL)))
	{
		// Return FALSE to let caller know we failed.		
		return FALSE; 
	}

    // Convert filename to UNICODE.
	// Notice the safe way to get the actual size of a string.
	WCHAR wPath[MAX_PATH];
    MultiByteToWideChar(CP_ACP, 0, pFileName, -1, wPath, sizeof(wPath)/sizeof(wPath[0]));   
    
	// Build the filter graph for our multimedia stream.
	if (FAILED((pAMStream->OpenFile(wPath, 0))))
	{	
		// Return FALSE to let caller know we failed.		
		return FALSE; 
	}

	//7/10 #110
	FILTER_INFO FilterInfo;
	pAMStream->GetFilterGraph(&pGb);
	pGb->EnumFilters(&pEfs);

    IBaseFilter *pFilter;
	unsigned long cFetched;
    while(pEfs->Next(1, &pFilter, &cFetched) == S_OK) {
		FILTER_INFO FilterInfo;
		pFilter->QueryFilterInfo(&FilterInfo);
		char szName[MAX_FILTER_NAME];
		long cch = WideCharToMultiByte(CP_ACP,0,FilterInfo.achName,MAX_FILTER_NAME,szName,MAX_FILTER_NAME,0,0);
		if (cch > 0) {
			if (!strcmp("WMAudio Decoder DMO",szName)) {
				// set the volume to music level
				FilterInfo.pGraph->QueryInterface(IID_IBasicAudio,(void**)&pBa);
				HKEY hKey;
				DWORD dwResult = 0;
				if (ERROR_SUCCESS == ::RegOpenKeyEx(HKEY_LOCAL_MACHINE, ALLEGIANCE_REGISTRY_KEY_ROOT,0, KEY_READ, &hKey)) {
					DWORD dwSize = sizeof(dwResult);
					DWORD dwType = REG_DWORD;
					::RegQueryValueEx(hKey, "MusicGain", NULL, &dwType, (BYTE*)&dwResult, &dwSize);
					::RegCloseKey(hKey);
					if (dwType != REG_DWORD)
						dwResult = 0;
				}
				long vol = (dwResult * -1) * 100;
				if (vol < -5000) {
					vol = -10000;
				}
				pBa->put_Volume(vol);
				pBa->Release();
			}
           if (FilterInfo.pGraph != NULL)
               FilterInfo.pGraph->Release();
           pFilter->Release();
		}
	}
	pEfs->Release();
	pGb->Release();

    // Assign member to temperary stream pointer.
	m_pMMStream = pAMStream;
	
	// Add a reference to the file
//.........这里部分代码省略.........

int _tmain(int argc, _TCHAR* argv[])
{
	IGraphBuilder *pGraph = NULL;
    IMediaControl *pControl = NULL;
    IMediaEvent   *pEvent = NULL; 
	//Get some param--------------
	HRESULT hr1;
	IBasicVideo *pVideo=NULL;
	IBasicAudio *pAudio=NULL;
	IVideoWindow *pWindow=NULL;
	IMediaSeeking *pSeeking=NULL;
	
	
    // Init COM
    HRESULT hr = CoInitialize(NULL);
    if (FAILED(hr)){
        printf("Error - Can't init COM.");
        return -1;
    }

	// Create FilterGraph
   hr=CoCreateInstance(CLSID_FilterGraph, NULL,CLSCTX_INPROC_SERVER,IID_IGraphBuilder, (void **)&pGraph);
    if (FAILED(hr)){
        printf("Error - Can't create Filter Graph.");
        return -1;
    }
   //  Query Interface
    hr = pGraph->QueryInterface(IID_IMediaControl, (void **)&pControl);
    hr = pGraph->QueryInterface(IID_IMediaEvent, (void **)&pEvent);
	// RenderFile
    hr = pGraph->RenderFile(L"cuc_ieschool.mov", NULL);
	if (FAILED(hr)){
		printf("Error - Can't Render File.");
		return -1;
	}
#if OUTPUT_INFO
	//Get some information----------
	long video_w=0,video_h=0,video_bitrate=0,audio_volume=0;
	long long duration_1=0,position_1=0;
	REFTIME avgtimeperframe=0;
	float framerate=0,duration_sec=0,progress=0,position_sec=0;
	//Video
	hr1=pGraph->QueryInterface(IID_IBasicVideo, (void **)&pVideo);
	pVideo->get_VideoWidth(&video_w);
	pVideo->get_VideoHeight(&video_h);
	pVideo->get_AvgTimePerFrame(&avgtimeperframe);
	framerate=1/avgtimeperframe;
	//pVideo->get_BitRate(&video_bitrate);
	//Audio
	hr1=pGraph->QueryInterface(IID_IBasicAudio, (void **)&pAudio);
	//Mute
	//pAudio->put_Volume(-10000);
	printf("Some Information:\n");
	printf("Video Resolution:\t%dx%d\n",video_w,video_h);
	printf("Video Framerate:\t%.3f\n",framerate);
	//Window
	hr1=pGraph->QueryInterface(IID_IVideoWindow, (void **)&pWindow);
	pWindow->put_Caption(L"Simplest DirectShow Player");
	//pWindow->put_Width(480);
	//pWindow->put_Height(272);
	//Seek
	hr1=pGraph->QueryInterface(IID_IMediaSeeking, (void **)&pSeeking);
	pSeeking->GetDuration(&duration_1);
	//time unit:100ns=0.0000001s
	duration_sec=(float)duration_1/10000000.0;
	printf("Duration:\t%.2f s\n",duration_sec);
	//pSeeking->SetPositions();
	//PlayBack Rate
	//pSeeking->SetRate(2.0);

	//Show Filter in FilterGpagh
	show_filters_in_filtergraph(pGraph);
	//----------------------
#endif

	printf("Progress Info\n");
	printf("Position\tProgress\n");
    if (SUCCEEDED(hr)){
        // Run
        hr = pControl->Run();
        if (SUCCEEDED(hr)){
			long evCode=0;
			//pEvent->WaitForCompletion(INFINITE, &evCode);
			while(evCode!=EC_COMPLETE){
				//Info
#if OUTPUT_INFO
				pSeeking->GetCurrentPosition(&position_1);
				position_sec=(float)position_1/10000000.0;
				progress=position_sec*100/duration_sec;
				printf("%7.2fs\t%5.2f%%\n",position_sec,progress);
#endif
				//1000ms
				pEvent->WaitForCompletion(1000, &evCode);
			}
        }
    }
	// Release resource
    pControl->Release();
    pEvent->Release();
    pGraph->Release();
//.........这里部分代码省略.........